Home / 13,908.26-20,858.13-5,583.89

Finding the Fourth Proportional to 13,908.26, 20,858.13 and 5,583.89

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Solution

The fourth proportional to 13,908.26, 20,858.13 and 5,583.89 is: 8,374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.26 : 20,858.13 = 5,583.89 : x
  2. Step 2: Convert to fraction form
    13,908.26/20,858.13 = 5,583.89/x
  3. Step 3: Cross multiply
    13,908.26x = 20,858.13 × 5,583.89
  4. Step 4: Simplify right side
    13,908.26x = 116,469,399.24
  5. Step 5: Solve for x
    x = 116,469,399.24/13,908.26
  6. Step 6: Final answer
    x = 8,374.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.